CENTOS7 installation of Redis in remote server and Java connection

1. Download and install Redis

In the remote server where you want to download execute the following command to download the Redis file to the server

　　$ wget http://download.redis.io/releases/redis-4.0.9.tar.gz
　　说明：$是指你的当前目录，不是命令的一部分，wget命令用来下载网上资源，后面的地址是网上资源路径，你可以去redis官网上查找你想下载的redis版本的下载路径
　　解压文件
　　$ tar xzf redis-4.0.9.tar.gz
　　编译文件
　　$ cd redis-4.0.9
　　$ make
　　注意：如果在make时报错有如下原因
　　　　1.没有安装gcc(因为redis是用c写得)，并且是4以上版本需要执行 yum install gcc
　　　　2.有可能也要安装gcc++，需要执行 yum install gcc++
　　　　3.如果要用make test命令测试redis，还需要安装tcl，命令为 yum install tcl
2.启动redis服务和客户端
　　在redis-4.0.9(解压编译目录)下执行
　　$ src/redis-server
　　这样就启动了服务，界面会出项相应的启动信息
　　现在再来启动客户端
　　$ src/redis-cli

3.使用java客户端访问远程redis服务
　　因为redis本身默认是不支持远程地址访问的，所以我们需要先配置一下redis
　　1.编辑安装目录下的redis.conf文件，注释掉本地ip绑定,
　　#bind 127.0.0.1
　　2.在本地客户端中设置登录密码
　　$ config set requirepass mypwd
　　这样基本就可以啦
　　具体的这块配置参考:
　　　　https://www.cnblogs.com/y-l-h/p/7930085.html
　　　　https://www.cnblogs.com/machanghai/p/5497043.html

　　接下来在开发工具中创建maven项目，添加jedis依赖

  <Dependencies>      <Dependency>        <groupId>Redis.clients</groupId>        <Artifactid>Jedis</Artifactid>        <version>2.9.0</version>    </Dependency>  </Dependencies>

Writing clients

ImportRedis.clients.jedis.Jedis; Public classRedistest { Public Static voidMain (string[] args) {
Create your Redis IP address
String Redisip = ""; //connecting to Redis server on cloud serverJedis Jedis =NewJedis (Redisip); //Authentication PasswordJedis.auth ("12358"); System.out.println ("Connection to server successfully"); //Check whether server is running or notSYSTEM.OUT.PRINTLN ("Server is running:" +jedis.ping ()); }}

The results are as follows, indicating a successful connection

Connection to server Successfullyserver is Running:pong

其他问题：之前用阿里的云服务器进行redis远程连接时会报错

Xception in thread "main"Redis.clients.jedis.exceptions.JedisConnectionException:java.net.SocketTimeoutException:connect timed out at Redis.clients.jedis.Connection.connect (Connection.java:207) at Redis.clients.jedis.BinaryClient.connect (Binaryclient.java:93) at Redis.clients.jedis.Connection.sendCommand (Connection.java:126) at Redis.clients.jedis.Connection.sendCommand (Connection.java:117) at Redis.clients.jedis.BinaryClient.auth (Binaryclient.java:564) at Redis.clients.jedis.BinaryJedis.auth (Binaryjedis.java:2138) at Top.pancras.redis.RedisTest.main (Redistest.java:11) caused by:java.net.SocketTimeoutException:connect timed out at Java.net.DualStackPlainSocketImpl.waitForConnect (Native Method) at Java.net.DualStackPlainSocketImpl.socketConnect (Dualstackplainsocketimpl.java:85) at Java.net.AbstractPlainSocketImpl.doConnect (Abstractplainsocketimpl.java:350) at Java.net.AbstractPlainSocketImpl.connectToAddress (Abstractplainsocketimpl.java:206) at Java.net.AbstractPlainSocketImpl.connect (Abstractplainsocketimpl.java:188) at Java.net.PlainSocketImpl.connect (Plainsocketimpl.java:172) at Java.net.SocksSocketImpl.connect (Sockssocketimpl.java:392) at Java.net.Socket.connect (Socket.java:589) at Redis.clients.jedis.Connection.connect (Connection.java:184)    ... 6 more

Firewall is not open, not a firewall problem, mainly in Alibaba cloud service want to open port also need to be configured in its official website, refer to http://www.cnblogs.com/coffee9527/p/8711906.html, Change the port to the port you want to open it should be OK

CENTOS7 installation of Redis in remote server and Java connection